Editing Ultramarine (section)

== Terminology ==
Ultramarine is a blue made from natural [[lapis lazuli]], or its synthetic equivalent which is sometimes called "French Ultramarine".<ref name="dic12">{{citation |last=Paterson |first=Ian |title=A dictionary of colour |pages=35, 169, 228, 396 |year=2003}}</ref> More generally "ultramarine blue" can refer to a vivid blue.

The term ultramarine can also refer to other pigments. Variants of the pigment such as "ultramarine red," "ultramarine green," and "ultramarine violet" all resemble ultramarine with respect to their chemistry and crystal structure.<ref>{{citation |last1=Eastaugh |first1=Nicholas |title=Pigment Compendium – A Dictionary and Optical Microscopy of Historical Pigments |pages=585–587 |year=2008 |isbn=978-0-7506-8980-9 |last2=Walsh |first2=Valentine |last3=Chaplin |first3=Tracey |last4=Siddall |first4=Ruth|publisher=Routledge }}</ref>

The term "ultramarine green" indicates a dark green while [[barium chromate]] is sometimes referred to as "ultramarine yellow".<ref name="dic12" /> Ultramarine pigment has also been termed "Gmelin's Blue," "Guimet's Blue," "New blue," "Oriental Blue," and "Permanent Blue".<ref>{{citation |last1=Kelly |first1=Kenneth Low |title=Color: Universal Language and Dictionary of Names |issue=440 |page=150 |year=1976 |publisher=U.S. Department of Commerce, National Bureau of Standards |last2=Judd |first2=Deane Brewster}}</ref>